#include "AHT20.h"


//void AHT20_Init(void)
//{
//	uint8_t readBuffer;
//	HAL_Delay(40);
//	HAL_I2C_Master_Receive(&hi2c1,AHT20_ADDRESS,&readBuffer,1,HAL_MAX_DELAY);
//	if((readBuffer&0x80) == 0x00)
//	{
//		uint8_t sendBuffer[3] = {0xBE,0x08,0x00};
//		HAL_I2C_Master_Transmit(&hi2c1,AHT20_ADDRESS,sendBuffer,3,HAL_MAX_DELAY);
//	}
//}

//void AHT20_Read(float *Temperature ,float *Humidity)
//{
//	uint8_t sendBuffer[3]	= {0xAC,0x33,0x00};
//	uint8_t readBuffer[6];
//	HAL_I2C_Master_Transmit(&hi2c1,AHT20_ADDRESS,sendBuffer,3,HAL_MAX_DELAY);
//	HAL_Delay(75);
//	HAL_I2C_Master_Receive(&hi2c1,AHT20_ADDRESS,readBuffer,6,HAL_MAX_DELAY);
//	
//	if((readBuffer[0] & 0x80) == 0x00)
//	{
//		uint32_t data = 0;
//		data = ((uint32_t)readBuffer[3] >>4) + ((uint32_t)readBuffer[2] << 4) + ((uint32_t)readBuffer[1] << 12);
//		*Humidity = data * 100.0f / (1 << 20);
//		
//		data = (((uint32_t)readBuffer[3] & 0x0F) << 16) + ((uint32_t)readBuffer[4] << 8) + (uint32_t)readBuffer[5];
//		*Temperature = data * 200.0f/(1 << 20) - 50;
//	}
//}
